Radiator



June 14, 1932. BEUNG I 1,862,735

RADIATOR Filed July 28, 1930 V 2 Sheets-Sheet l June 14, 1932.

E H' BELING RADIATOR Filed July 28, 1930 2 Sheets-Sheet 2 Fatented June 14%, 1932 UNETD STATES ATENT @FFEQE EARL H. BEIJING OF MOLINE, ILLINOIS, ASSIGNOR TO THE HERMAN NELSQN CORPO- RATION, OF MOLINE, ILLINOIS, A CORPORATION OF ILLINOIS RADIATOR Application filed July 28, 1930. Serial No. 271,293.

This invention relates to radiators.

The present invention is directed to a radiator of the general type shown and described in application of Wilfred Shurtlefi,

5 Serial No. 157,658, filed December 29, 1926, and issued as Patent No. 1,775,257, dated September 9, 1920.

Radiators of the character in question comprise a wedge-shaped core, preferably formed of aluminum, which is a metal of high thermal conductivity, upon which core a multiplicity of closely spaced fins or plates are wedged in such a way as to bring them into close and intimate metal contact with the exterior of the core to insure a rapid dissemination of heat.

The present invention is designed particularly for use under conditions in which waters having corrosive properties are circulated through the core, usually at high pressures, and in which it is desirable to reinforce the core and provide passages therethrough, and in which such passages are afforded by tubing, which will be resistant to corrosive action and adapted to better withstand the high pressures, so that the aluminum or similar metal of which the body of the core itself is composed will be lined and reinforced by metal tubing. This results in a radiator which possesses all of the external characteristics of the wedge coreradia tor of the Shurtleif application above referred to, but which employs only steel, wrought iron, brass, copper, or other wrought metal coming into contact with the water. This enables the radiator to be used on heating or cooling systems operated on very high pressures such, for instance, as is encountered in CO refrigeration.

In the drawings:

Figure 1 is a side elevation of a radiator embodying the principles of the present invention; I

Fig. 2 is a cross sectional elevation showing the interior of the core construction;

Fig. 3 is a side view, partly in elevation and partly in section, showing the tubing arrangement of the interior of the core;

Fig. 4 is a modified arrangement of the tubing; and

Fig. 5 is a sectional elevation taken on line 5 5 of Fig. 4:.

The radiator as a whole comprises a core 10 of wedge shaped formation having smooth upwardly converging side walls 11, which constitute heat radiating surfaces for the contact of flanges 12 formed along the margins of inner edge shaped openings 13 of a multiplicity of fins or plates 14, which as shown are of rectangular configuration, and are provided along their vertical edges with flanges 15 which serve as spacers for the fins or plates when the same are assembled in the manner indicated in Fig. 1.

The fins or plates are first threaded upon the core and are afterwards driven or forced down thereunto to bring the inner flanges 12 into wedging contact with the surfaces of the core, as fully set forth and described in the Shurtleif patent aforesaid, and since the present invention is not directed to the method of assembling and wedging the fins upon the core, but rather to the core itself, it is not deemed necessary to describe the fin construction in greater detail.

The core of the present invention is in the form of a wedge shaped block of metal which is cast around a tubular assembly, which may be of variable construction, but which in every case involves a plurality of passage ways through the core and consists of a selfcontained integrally united tubular assembly furnishing passageways through which the fluid circulates.

As shown in Fig. 3, the tubular assembly comprises a straight header tube 16, the ends 17 of which extend beyond the core and are threaded to receive couplings or the like for making connection with a fluid circulating pipe line. The header tube 16 furnishes a mounting for a plurality of branch tubes, which may be variable in number, but which in Fig. 3 comprise three tubes, 18, 19, 20, of progressively decreasing diameter. The branch tubes lie in nested arrangement but out of contact with one another, and each branch tube is inturned at its ends 21 to unite with the header tube, the union being afforded by brazing, welding or the like, which gives to the completed structure the characteristics of an integrally united assembly.

In view of the nested arrangement of the branch tubes, the ends are of necessity i11- turned in progressively increasing degree to bring them to the level of the header tube, which is of straight formation and lies near the base of the core, which is the region of its greatest cross sectional area.

Fig. 4 shows a structural modification in which the header tube 160 has upwardly extending therefrom near each end a vertical header 161 to which the ends of the branch tubes 180, 190, 200, and are united, four branch tubes rather than three being provided for by this arrangement. In this case, in order to increase the circulation through the branch tubes, each of the vertical headers 161 has its lower end entered completely through the wall of the header tube 160, and projected downwardly and beveled as at 162 to afford a baffle for diverting a substantial amount of the circulating liquid upwardly and through the branch tubes; and it will be understood that if desired, the construction shown in Fig. 2 can be similarly modified by inwardly extending the downturned ends of the upper branch tubes 18, 19 and 20.

By forming the tube assembly in the man ner described, the assembly itself will constitute a liquid circulating unit, which may be constructed of proper materials to afford the necessary strength to resist high pres sures, and of metal adapted to resist corrosion, so that the cast core will serve simply as an added reinforcement and as a wedge mounting for the fins.

The core will preferably be constructed oi aluminum or other li ht weight metal of high thermal conductivity, and by casting the core around the tubular assembly, an intimate metal to metal contact will be everywhere atforded, so that high efiiciency in the transfer of heat units will be secured. At the same time, the arrangement is one which permits the circulation of the liquid to be directed or controlled more perfectly than is possible in the case of a hollow core which simply at fords an unbroken space or chamber through which the liquid circulates more or less at random, and by providing bafiles of the character shown in Fig. 4:, it will be possible more positively to direct a portion of the current flow to the top of the core, thereby better equalizing the current flow throughout the various branch tubes composing the assembly as a whole.

Although the invention has been described in particular detail, it is not the intention to limit the invention to the arrangement shown, since modifications thereof may be made without departing from the spirit of the invention.

I claim:

1. In a radiator, the combination of a verlevels within the core.

2. In aradiator, the combination of a core and a plurality of radiating fins mounted upon the core, the core being provided with a plurality of communicating passageways extending therethrough for the circulation. of fluids, said passageways being afforded .by a tube assembly embedded within the-core and com-prisin a single longitudinally extending header tube located near the base of the core and a plurality of branch tubes each having both ends in communication with the single header tube, said branch tubes standing at varying levels above the header and extending longitudinally through the core.

3. In a radiator, the combination of a wedge shaped core and a plurality of radiating fins wedged upon the core, the core being provided with a plurality of communicating passageways extending therethrough for the circulation of fluids, said passageways being afforded by a tube assembly embedded within the core and comprising a single longitudinally extending header tube located near the base of the core and a plurality of branch tubes located at progressive elevations with in the core and each having both of its ends downturned and in communication with the header tube.

4. In a radiator, the combination of a relatively fiat wedge shaped core having smooth upwardly converging exterior side walls and composed of a metal having high thermal conductivity, a plurality of closely spaced metallic tins of high thermal conductivitv wedged into intimate metal contact with the exterior side walls of the core, and a tube assembly embedded within the core and comprising a longitudinally extending header tube located near the base of the core, and a series of superposed branch tubes in nested relation one above the other and having their ends downturned and united with and in communication with the header tube.

5. In a radiator, the combination of a wedge shaped core having smooth upwardly converging exterior side walls and composed of a metal having high thermal conductivity, a plurality of closely spaced metallic tins of high thermal conductivity wedged into intimate metal contact with the exterior side walls of the core, and a tube assembly embedded within the core and comprising a Gil longitudinally extending header tube located near the base of the core, and a series of branch tubes of progressively decreasing diameter, having their ends united with and in communication with the header tube.

6. In a radiator, the combination of a wedge shaped core having smooth upwardly converging exterior side walls and composed of a metal having high thermal conductivity, a plurality of closely spaced metallic fins of high thermal conductivity wedged into in timate metal contact with the exterior side walls of the core, and a tube assembly composed of metallic tubing adapted to resist corrosion and embedded within the core and comprising a longitudinally extending header tube located near the base of the core, and a series of branch tubes having their ends united with and in communication with the header tube.

7. In a radiator, the combination of a wedge shaped core having smooth upwardly converging exterior side walls and composed of a metal having high thermal conductivity, a plurality of closely spaced metallic fins of high thermal conductivity wedged into intimate metal contact with the exterior side walls of the core, and a tube assembly composed of metallic tubing adapted to resist corrosion and embedded within the core and comprising a longitudinally extending header tube located near the base of the core, and a series of branch tubes of progressively decreasing diametcr, having their ends united with and in communication with the header tube.

8. In a radiator, the combination of a wedge shaped core having smooth upwardly converging exterior side walls and composed of a. metal having high thermal conductivity, a plurality of closely spaced metallic fins of high thermal conductivity wedged into inti mate metal contact with the interior side walls of the core, and a tube assembly co1n posed of metallic tubing adapted to resist corrosion and high pressures and intimately united into a unitary structure and embedded within the core and comprising a longitudinally extending header tube located near the base of the core, and a series of branch tubes at progressive heights above the header and having their ends downturned in varying degrees and united with and in communication with the header tube.

9. In a radiator, the combination o1 a wedge shaped core having smooth upwardly converging exterior side walls and composed of a metal having high thermal conductivity, a plurality of closely spaced metallic fins of high thermal conductivity wedged into intimate metal contact with the exterior side walls of the core, and a tube assembly composed of metallic tubing adapted to resist corrosion and high pressures and intimately united into a unitary structure and embedded within the core and comprising a longitudinally extending header tube located near the base of the core, and a series of branch tubes of progressively decreasing diameter, having their ends united with and in communication with the header tube.

10. In a radiator, the combination of a relatively flat vertically standing core and a plurality of radiating fins mounted upon the core, the core being provided with a plurality of communicating passageways extending therethrough for the circulation of fluids, said passageways being aflorded by a tube assembly embedded within the core and comprising a longitudinally extending header tube and a plurality of branch tubes each having both ends in communication with the header tube, and means in said header tube for diverting fluid into said branch tubes.

11. In a radiator, the combination of a core and a plurality of radiating fins mounted upon the core, the core being provided with a plurality of communicating passageways extending therethrough for the circulation of fluids, said passageways being offorded by a tube assembly embedded within the core and comprising a longitudinally extending header tube and a plurality of branch tubes having their ends in communication with the header tube, one of said branch tubes having its end extending into said header tube in the path of the fluid to divert fluid into said branch tubes.

12. In a structure of the class described, the combination of a casting and a plurality of tubes embedded in said casting to form passages therethrough, and comprising a continuously open header tube adapted at its opposite ends to receive pipe couplings, and branch tubes each connected at both ends with the header and in open communication with one another through the header, at least one of said ends extending through the wall of said header tube into the path of the fluid in the header tube to divert fluid into said branch tubes.

In witness that I claim the foregoing I have hereunto subscribed my name this 22nd day of July, 1930.

EARL H. BELING. 

